body {
	background: url(../img/index-bg.jpg) no-repeat;
	background-size: cover;
}

.warpper {
	display: flex;
	flex-direction: column;
}

.index-header {
	flex: 0 0 auto;
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.logo {
	display: flex;
	flex: 0 0 auto;
	align-items: center;
	padding-left: 20px;
	color: #fff;
	text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
	white-space: nowrap;
}

.logo dt {
	float: left;
	margin-right: 10px;
}

.logo ul h4 {
	padding-top: 5px;
	margin: 0;
	font-size: 24px;
	font-weight: 900;
}

.logo ul span {
	font-weight: bold;
	font-size: 14px;
}

.back-channal {
	margin-left: 10px;
}

.back-channal:hover {
	color: #FFFFFF;
}

.channal-nav {
	flex: 1;
	display: flex;
	flex-wrap: nowrap;
	padding: 10px 0;
	margin: 0 15px;
	text-align: center;
	overflow-x: auto;
	align-items: center;
	justify-content: center;
}

.channal-nav li {
	flex: 0 0 auto;
	text-align: center;
	margin: 0 5px;
}

.channal-nav li dt {
	width: 68px;
	height: 68px;
	margin: 0 auto;
	border-radius: 8px;
	background-color: rgba(255, 255, 255, 0.25);
	background-repeat: no-repeat;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
	margin-bottom: 5px;
	transition: all .2s ease;
}

.channal-nav li dt.nav-a {
	background-image: url(../img/index-nav1.png);
}

.channal-nav li dt.nav-a-1 {
	background-position: 0 0;
}

.channal-nav li dt.nav-a-2 {
	background-position: -68px 0;
}

.channal-nav li dt.nav-a-3 {
	background-position: -134px 0;
}

.channal-nav li dt.nav-a-4 {
	background-position: -202px 0;
}

.channal-nav li dt.nav-a-5 {
	background-position: -270px 0;
}

.channal-nav li dt.nav-a-6 {
	background-position: -338px 0;
}

.channal-nav li dt.nav-a-7 {
	background-position: -406px 0;
}

.channal-nav li dt.nav-a-8 {
	background-position: -474px 0;
}

.channal-nav li dt.nav-b {
	background-image: url(../img/index-nav2.png);
}

.channal-nav li dt.nav-b-1 {
	background-position: 0 0;
}

.channal-nav li dt.nav-b-2 {
	background-position: -68px 0;
}

.channal-nav li dt.nav-b-3 {
	background-position: -134px 0;
}

.channal-nav li dt.nav-b-4 {
	background-position: -202px 0;
}

.channal-nav li dt.nav-b-5 {
	background-position: -270px 0;
}

.channal-nav li dt.nav-b-6 {
	background-position: -338px 0;
}

.channal-nav li dt.nav-b-7 {
	background-position: -406px 0;
}

.channal-nav li dt.nav-b-8 {
	background-position: -474px 0;
}

.channal-nav li dt.nav-b-9 {
	background-position: -542px 0;
}

.channal-nav li dt.nav-b-10 {
	background-position: -610px 0;
}

.channal-nav li dt.nav-b-11 {
	background-position: -678px 0;
}

.channal-nav li dt.nav-c {
	background-image: url(../img/index-nav3.png);
}

.channal-nav li dt.nav-c-1 {
	background-position: 0 0;
}

.channal-nav li dt.nav-c-2 {
	background-position: -68px 0;
}

.channal-nav li dt.nav-c-3 {
	background-position: -134px 0;
}

.channal-nav li dt.nav-c-4 {
	background-position: -202px 0;
}

.channal-nav li dt.nav-c-5 {
	background-position: -270px 0;
}

.channal-nav li:hover dt,
.channal-nav li.active dt {
	background-color: rgba(255, 255, 255, 0.75);
}

.channal-nav li span {
	color: #fff;
}

.user-info {
	flex: 0 0 auto;
	padding-right: 20px;
	color: #FFFFFF;
	text-align: right;
}

.user-avatar {
	margin-right: 10px;
	padding-right: 10px;
	border-right: 1px solid #fff;
}

.user-avatar img {
	display: inline-block;
	width: 40px;
	height: 40px;
	text-align: center;
	vertical-align: middle;
	background: url(../img/avatar.png) no-repeat;
	background-size: 40px;
	border-radius: 50%;
	margin-right: 5px;
}

.user-function a {
	padding: 4px;
	display: inline-block;
}

.user-function a:hover {
	opacity: .75;
	color: #FFFFFF;
}